agar ap aik he point pe buy aur sell karte hain to wo apko no profit no loss ki sorat mai aa jye ga, qk agar market upar ki taraf jye gi to buy ka profit aur sell ka loss hoga, aur agar neche ki taraf aye gi to buy ka loss aur sell ka profit. yahan pe agar ap volume ko change kar laite hain to wo ap k lye aur risky ho skta hy, qk har trade k sath equity decrease ho jati hy aur jis se margin call ka khadsha hta hy. So behtar hy k ya sell karen ya buy.